To get high score in polytrack, you need to combine skillful driving skills and smart strategy. First of all, get familiar with the tracks and control your car skillfully. Use the control keys flexibly to overcome curves and obstacles smoothly. Next, make the most of support items such as acceleration, shields, and weapons to gain an advantage over your opponents. Don't forget to collect coins and bonus points on the track to increase your score. Finally, experiment and customize your car to find the most optimal configuration for each type of track. By combining all these factors, you will have the opportunity to get high scores and become the top player in PolyTrack. Good luck and have fun!